IT1298149B1 - Sistema di multiplazione a divisione di lunghezza d'onda, sistema di trasmissione a multiplazione a divisione di lunghezza e sistema di - Google Patents

Sistema di multiplazione a divisione di lunghezza d'onda, sistema di trasmissione a multiplazione a divisione di lunghezza e sistema di

Info

Publication number
IT1298149B1
IT1298149B1 IT98MI000079A ITMI980079A IT1298149B1 IT 1298149 B1 IT1298149 B1 IT 1298149B1 IT 98MI000079 A IT98MI000079 A IT 98MI000079A IT MI980079 A ITMI980079 A IT MI980079A IT 1298149 B1 IT1298149 B1 IT 1298149B1
Authority
IT
Italy
Prior art keywords
multiplation
length division
transmission system
wave length
division
Prior art date
Application number
IT98MI000079A
Other languages
English (en)
Inventor
Hideki Okuno
Original Assignee
Nec Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nec Corp filed Critical Nec Corp
Publication of ITMI980079A1 publication Critical patent/ITMI980079A1/it
Application granted granted Critical
Publication of IT1298149B1 publication Critical patent/IT1298149B1/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/03—WDM arrangements
    • H04J14/0305—WDM arrangements in end terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
IT98MI000079A 1997-01-17 1998-01-16 Sistema di multiplazione a divisione di lunghezza d'onda, sistema di trasmissione a multiplazione a divisione di lunghezza e sistema di IT1298149B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09038641A JP3080219B2 (ja) 1997-01-17 1997-01-17 波長多重方法、波長多重伝送システム及び光パスクロスコネクトシステム

Publications (2)

Publication Number Publication Date
ITMI980079A1 ITMI980079A1 (it) 1999-07-16
IT1298149B1 true IT1298149B1 (it) 1999-12-20

Family

ID=12530880

Family Applications (1)

Application Number Title Priority Date Filing Date
IT98MI000079A IT1298149B1 (it) 1997-01-17 1998-01-16 Sistema di multiplazione a divisione di lunghezza d'onda, sistema di trasmissione a multiplazione a divisione di lunghezza e sistema di

Country Status (3)

Country Link
US (1) US6297895B1 (it)
JP (1) JP3080219B2 (it)
IT (1) IT1298149B1 (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010048799A1 (en) * 1998-05-21 2001-12-06 F. David King Optical communication system
US6721508B1 (en) 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
US6563616B1 (en) * 1999-02-21 2003-05-13 Electro-Optical Sciences, Inc. Optical demultiplexer
US6567196B1 (en) * 1999-03-22 2003-05-20 Ciena Corporation Dense WDM optical multiplexer and demultiplexer
JP4588234B2 (ja) * 2001-03-15 2010-11-24 富士通株式会社 光デバイス及びこれを用いる波長多重通信システム
US7197245B1 (en) 2002-03-15 2007-03-27 Xtera Communications, Inc. System and method for managing system margin
US7068938B1 (en) 2002-03-15 2006-06-27 Xtera Communications, Inc. Band optical add/drop multiplexing
US7254337B1 (en) 2006-05-16 2007-08-07 Xtera Communications, Inc. Band optical add/drop multiplexing
US20090047019A1 (en) * 2007-08-13 2009-02-19 Paparao Palacharla Method and System for Communicating Optical Traffic
US8078054B2 (en) * 2008-06-30 2011-12-13 Alcatel Lucent Apparatus and method for improving the tolerance of tone-based optical channel monitoring to stimulated Raman scattering
EP3022858A4 (en) * 2013-07-16 2017-03-15 ADC Telecommunications Inc. Distributed wave division multiplexing systems
EP2925012B1 (en) * 2014-03-27 2017-01-11 Alcatel Lucent A wavelength routing cross-connect

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1108902A (en) 1978-06-15 1981-09-15 R. Ian Macdonald Wavelength selective optical coupler
JPS56150706A (en) 1980-04-23 1981-11-21 Nippon Telegr & Teleph Corp <Ntt> Multiple optical branching filter
JPS5714806A (en) 1980-07-01 1982-01-26 Takumi Tomijima Wavelength multiplex optical transmitting and receiving distributor
JPS6235084A (ja) 1985-08-07 1987-02-16 Matsushita Electric Ind Co Ltd 電動圧縮機の支持装置
JP2567680B2 (ja) 1988-09-26 1996-12-25 日本電信電話株式会社 光周波数多重伝送方式
JPH0437225A (ja) 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 光送信装置と光受信装置
GB2251957B (en) 1990-11-29 1993-12-15 Toshiba Kk Optical coupler
JPH04220603A (ja) 1990-12-21 1992-08-11 Nikko Kyodo Co Ltd 光結合器
JPH04220602A (ja) 1990-12-21 1992-08-11 Nippon Telegr & Teleph Corp <Ntt> 導波型光合分波器
US5177803A (en) 1991-04-29 1993-01-05 Corning Incorporated Coaxial optical fiber coupler transmitter-receiver apparatus and method of making same
US5121453A (en) 1991-06-12 1992-06-09 The United States Of America As Represented By The Secretary Of The Navy Polarization independent narrow channel wavelength division multiplexing fiber coupler and method for producing same
JPH05292558A (ja) 1992-04-06 1993-11-05 Nippon Telegr & Teleph Corp <Ntt> 大容量スイッチ回路
JP3347382B2 (ja) 1993-02-23 2002-11-20 株式会社東芝 光アド・ドロップ波長多重分離装置
JPH06258545A (ja) 1993-03-09 1994-09-16 Hitachi Ltd 光分波装置
JP3020378B2 (ja) 1993-04-27 2000-03-15 沖電気工業株式会社 光交換システム
US5579143A (en) * 1993-06-04 1996-11-26 Ciena Corporation Optical system with tunable in-fiber gratings
US5917625A (en) * 1993-09-09 1999-06-29 Kabushiki Kaisha Toshiba High resolution optical multiplexing and demultiplexing device in optical communication system
US5764821A (en) * 1994-02-06 1998-06-09 Lucent Technologies Inc. Large capacity local access network
JPH07231305A (ja) 1994-02-17 1995-08-29 Toshiba Corp 光波長多重ネットワーク
JPH07261053A (ja) * 1994-03-18 1995-10-13 Fujitsu Ltd 光合分波モジュール
FR2720883B1 (fr) * 1994-06-07 1997-01-10 Cit Alcatel Multiplexeur spectral optique à insertion-extraction.
FR2735931B1 (fr) * 1995-06-21 1997-07-25 Hamel Andre Dispositif reconfigurable pour insertion-extraction de longueurs d'onde
JP3540062B2 (ja) * 1995-08-28 2004-07-07 富士通株式会社 チューナブルフィルタモジュール
US5801858A (en) * 1996-06-25 1998-09-01 Northern Telecom Limited Optical transmission systems using optical amplifiers and wavelength division multiplexing
JPH1078528A (ja) * 1996-09-03 1998-03-24 Fujitsu Ltd 光合分波器及び波長分割多重モジュール
US5936763A (en) * 1996-11-15 1999-08-10 Matsushita Electric Industrial Co., Ltd. Optical fiber amplifier, semiconductor laser module for pumping and optical signal communication system
JPH10173264A (ja) * 1996-12-09 1998-06-26 Kokusai Denshin Denwa Co Ltd <Kdd> 利得等化装置
US6631018B1 (en) * 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node

Also Published As

Publication number Publication date
JPH10210013A (ja) 1998-08-07
JP3080219B2 (ja) 2000-08-21
ITMI980079A1 (it) 1999-07-16
US6297895B1 (en) 2001-10-02

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